按钮样式示例
<div class="editor_view codemirror_btnH">
    <textarea id="codemirror_btn">
<button type="button" class="btn btn-default">Default</button>
<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-link">链接</button>

可增加 btn-lg btn-sm btn-xs，这里项目没有对这几个class重写，需要的时候可以重写
<button type="button" class="btn btn-default btn-lg">Default</button>
<button type="button" class="btn btn-success btn-sm">Success</button>
<button type="button" class="btn btn-warning btn-xs">Warning</button>
    </textarea>
</div>

<p>
<button type="button" class="btn btn-default">Default</button>
<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-link">链接</button>
</p>

<p>
<button type="button" class="btn btn-default btn-lg">Default</button>
<button type="button" class="btn btn-primary btn-lg">Primary</button>
<button type="button" class="btn btn-success btn-sm">Success</button>
<button type="button" class="btn btn-info btn-sm">Info</button>
<button type="button" class="btn btn-warning btn-xs">Warning</button>
<button type="button" class="btn btn-danger btn-xs">Danger</button>
<button type="button" class="btn btn-link">链接</button>
</p>

<p> 
    <button type="button" class="btn btn-default btn-lg ">默认按钮</button> 
    <button type="button" class="btn btn-default btn-lg active">激活按钮</button> 
</p> 
<p> 
    <button type="button" class="btn btn-primary btn-lg ">原始按钮</button> 
    <button type="button" class="btn btn-primary btn-lg active">激活的原始按钮</button> 
</p>
<p> 
    <button type="button" class="btn btn-default btn-lg">默认按钮</button> 
    <button type="button" class="btn btn-default btn-lg" disabled="disabled">禁用按钮</button> 
</p> 
<p> 
    <button type="button" class="btn btn-primary btn-lg ">原始按钮</button> 
    <button type="button" class="btn btn-primary btn-lg" disabled="disabled">禁用的原始按钮</button> 
</p> 
<p> 
    <a href="#" class="btn btn-default btn-lg" role="button">链接</a> 
    <a href="#" class="btn btn-default btn-lg disabled" role="button">禁用链接</a> 
</p> 
<p> 
    <a href="#" class="btn btn-primary btn-lg" role="button">原始链接</a> 
    <a href="#" class="btn btn-primary btn-lg disabled" role="button">禁用的原始链接</a> 
</p>
<p>
<xmp>可以在 <a>、<button> 或 <input> 元素上使用按钮 class。但是建议您在 <button>元素上使用按钮 class，避免跨浏览器的不一致性问题。</xmp>
</p>
<a class="btn btn-default" href="#" role="button">链接</a> 
<button class="btn btn-default" type="submit">按钮</button> 
<input class="btn btn-default" type="button" value="输入"> 
<input class="btn btn-default" type="submit" value="提交">

